Steps to replicate the issue (include links if applicable):

• Watchlist this page
• Go to your watchlist and notice the entry "(diff | hist) . . Dm User:Sdkb/List of colleges and universities by number of alumni with Wikipedia pages (Q4569677); 13:14 . . Cfls (talk | contribs) (Language link changed from en:Columbia College (New York) to en:Columbia College, Columbia University)"
• Click on either of the links beginning with "en:"

What happens?:
It goes to the pages https://www.wikidata.org/wiki/Columbia_College_(New_York) or https://www.wikidata.org/wiki/Columbia_College,_Columbia_University, both of which are errors

What should have happened instead?:
It should have gone to the page https://en.wikipedia.org/wiki/Columbia_College,_Columbia_University